Governor



Jan. 13, 1931. e. L. MOYERS ET AL 1,788,403

GOVERNOR Filed Sept. 19, 1927 2 Sheets-Sheet 1 INVEWTOES' 197708/VEK 2 Jan. 13, 1931.

G. L. MOYERS ET AL GCVERNOR Filed Sept. 19, 1927 2 $heetsSheet 2 iii ill I I an follow ciency from the ad ustingmec to 1g. 5 asectional Patented Jan. 13, 1931' UNITED srA'r s ENT; O F FICE- GLENN I. IIOYEBS, OF ST. CLAIR BEOREF;

MICHlGAN, ASSIGNORS -'ro MONABCH eovn moa co.,. or nnrnorr, mcnmm eovnm'woa Application fled'leptember 19, 1927. Serial K045320317.

Our invention relates to improvements in governors for use on internal combustion 'engines in which the'governor valve mechanism is actuated by the flow of the fuel charge in the intake passage of the engine; and the objects of our improvement are, first, to provide a governor that will operate with like characteristics at all motor speeds; second, to provide a governor that, in its operation, will the predetermined curve of the resultant effect on the governor valve, due to the vacuum third, to provide a governor valve control to provide a flexible cam follower capable of transmitting exact and sensitive counterbalancing efforts; fifth, to provide a governor utilizing an unbalanced valve with exceptional eflistandpoint of lack of resistance tov the flow. of the fuel charge in the 0 en position; sixth, to provide a flexible mem capable of producing any desired counterbalancing effort at any selected point -5 throughout its range of action; and seventh, to provide a governor that, because of its accurate operation, will conserve the maxi- 11111151 power of the engine with which it is use 1 We attain these illustrated in the accompanying drawing, in which- Figure l is a side elevation of the entire governor with its housing cover removed and showmlg its counter-balancing control mechanism; ig. 2, a view of the entire governor as it appears in a plane parallel to its control housing cover; Fig. 3, a vertical section on the line 3-3, Fig. 1; Fig. 4, an end view of the control housing and cover showing the spring adjustment with its sealand seal screw removed; Fig. 5, a detail view of the washer for enga ing the spring adjusting screw;

Fig: 6, a side elevation of the entire governor assembled to the intake manifold of an internal combustion. engine; Fig. 7, a sectional 'view of the valve and housing on the line 7-7. Fig. 3; Fig. 8 a sectional view of the spring anism on the line 8-8 Fig. 1;

new of the control housing in the intake passage of the engine;

impact of the fuel charge objects by the mechanism on the line 9 9, Fi '1; Fig. 10, a curve plotted in variables 0 valve opening and intake manifold pressure.

Similar numerals refer to similar parts throughout the several views.

In Fig. 1,'the cam 1 is fastened to the valve shaft 2 by the pin 3 and is contained, together with its control mechanism, in the housing 4 which is mounted on thegvalve housin 5 havin flanges 6 and 7. The flange 6 ena les the valve housing 5 to be bolted to the flange 8 of the intake manifold 9 of any internal com bustion engine. The flange [7 enables the valve housing 5 to be bolted to the flange 10 of the carburetor 11. 1

The valve 12 is fastened to the valve shaft 2 by means of the screws 13. The valve'12' has its axis or valve shaft 2 located at one side of its center line and is known as an unbalanced valve. As shownby full lines flow with the result that there is'afslight torque exerted on the'valve shaft 2 by the on the lower side of the valve 12. This impact tends to move the valve 12 toa closed position as shown by, the dotted lines 14. In the ordianry governor valve a counter torque impact results AND EARL a BRA-HAM, or nnrnorr;

from the extension of the upper portion of v the governor valve to the other side of it's axis of shaft in the same-plane. This, however results in an undesirable restricted fuel charge flow in the open position of the valve. In our invention, we overcome this restriction to the flow of the fuel charge at opening throttle positions by forming the upper portion 15 of the valve 12 so that-it is located in substantially exact ah'nement with the main line of the fuel charge flow. We are thus able to use this eflicient type .of valve form 15. in our invention because of the sensitive and accurate counterbalancing control means provided for by the cam 1. The flex ible member 16 is fastened to the cam 1 by the screw 17 and contacts with the base 0 the cam surface 18 when the valve 12 is in an open position "as shown. by the full lines in Fig. 7. The outer end of the flexible member 16.is connected to the 19 which in turn is connected to the spring 20. The nut 21 is located within the spring'20v and has a flange 22 which extends radially on one or more sides. The flange 22 is wedged between the coils of the spring and is capathis oscillating movement, the under portion of the head of the screw 23 is tapered as at27- and the hole 28 in the housing 4 is made with clearance around the screw 23 for the same reason. Adjustment of the spring 20 is thus-further provided by turning the screw 23 by means of the slot 29. In turning the screw 23, the pin 24 rides out of the.

groove 25 in the washer 26 until the screw 23 makes one half of a'revolution when the pin 24 is again firmly seated in. the groove 25 by the tension of the spring 26. The pin 24 thus acts as an index member, being automatically seated in the groove 25 of the washer 26 bythe action of the spring 20. The-washer 26 is pressed into the hole 30 which is clomd at its outer end by the screw 31. g The hole 32 extends through the screw 31 and the housing 4 and permits of the locking of the governonsetting against tamperlng by'means of the wire 33 and. the seal 34.

To provide a governor that -will operate at all motor speeds with like characteristics, it

is necessary to provide accurate and sensitive means for counterbalancing the governor valve in all of His positions when the eng ne is operating at a constant speed. i

In our invention, we have succeeded in ob taining a' counterbalancing means that is susceptible to very sensitive and accurate modifications which" inturn permit of establishing the said counterbalancing eans so that its-reaction will be exactly 1' that of the reactions imposed on the governor valve by the variable forces derived from the operation of the engine, thusenabling the governor operation to follow a predetermined curve of the said reactions as developed in any given engine. 1

The cam face-18 on the cam 1 is first developed in accordance with thesaid predetermined reaction curve of any given engine, in conjunction with its contact-effect on the flexible member 16. It is. to be especially noted that as the valve 12.tends to move toward a closed position, due to the reaction of an increased vacuum in the intake manifold 9, it tends to overcome the counterbalancing effort of the spring 20 by moving the cam 1 In our invention together with the flexible member 16 to the positions shown by the dotted lines in Fig. 1. This ability of the flexible member 16 to thus be moved by the cam face 18 upward and at the same time circumferentially around the shaft 2 of the cam 1 moves the point of contact of the fiexible'member 16 outward on the face 18 of the cam 1. This results in a rapid acceleration of the extension of the spring 20, this'tens'ion being exerted at points increasingly removed from the center of the shaft 2 in the cam 1, duplicating the characteristics I of-the torque curve produced by the reactions exerted on the valve 12.

The exact reverse of this operation takes place when a load is applied on the engine reducing its speed and the resultant effect on the valve 12, allowing valve 12 to move toward the open position as shown by the full lines in Fig. 7.

It is also to be noted that the characteristics of the flexible member 16 can be further developed and cdntrolled by utilizing difi'erent 'sha es and sections throughout its len h in con unction with the cam 1. An en arged portion 35 of the flexible member 16 1s shown inFig.2

In Fig. 10 a reduced size of the torque curve of an'engine displays the reactions exertedon the valve of a governor. This curve is plotted in variables of throttle opening and intake manifold pressure and is general in resultant form for all internal combustion engines.

ounds turning effort imposed on the axis of the throttle by the intake manifold pressure.

To maintain a'predetermined constant enthis proper state of equilibrium between the valve adjustment and engine load 'variatlons, as disclosed in general, in Fig.10, by our very sensitive and exact counterbalancing mechanism.

'It'is to be further noted that the pin 36 is mounted in the housing 4 and engagesthe cam 1, thereby forming a stop for the cam 1. The posit-len of the pin 36 may be varied in order toproperly establish the open throttle position of the valve 12 in accordance' with the maximum 'fuel demands of a given engine at the governed speed.

We claim: I

The vertical axes represent the angle in degreesof throttle opening and the horizontal axes represent the result-1n inch we are able to produce 1. In a governing device for a hydrocarbon engine, the combination of a housing having an intake conduit, a governing member lo' ZIJ cated in the intake conduit of the said housing, the said governing member being capable of being rota-ted on its axis to a closed position connected to the housingfiand a flexible member connected to the said resilient member and the said cam, said flexible member being adapted to move around the axis of said governing member, the said flexible member increasing its length ofcontact with the saidcam during the movement of the said govern-- I ing member to a closed position and thereby causingthe said resilient member to exert an increasing tension to maintain, in accordance with a predetermined curve,'the said governing member in a state of equilibrium at a predetermined speed, relative to the reactions imposed thereupon by the operation of the engine.

2. In a governing device having a govern-' ing member capable of being rotated to a closed position by the reactions imposed thereupon by the operation of the engine, a

cam connected to the governing member and adapted to move therewith, aroundthe axis of said governing member, a resilient member swivelly anchored, a cam follower having its inner endconnected to the said cam and its outer end connected to the said resilientmember, said cam follower being adapted to move around the axis of said governing member, the outer end of the said cam follower being increasingly removed 'from the anchorage point of the said resilient 'memberwith the movement of the governing member to a closed position, the said resilient member being thereby rapidly accelerated to a maximum extended position'to'maintain, in accordance with a predetermined curve, the said governing member in a state of equilibrium, at a pre} determined speed, relative to thereactions imposed thereupon by the operation of the en- '1118. v

r? 3. In a governor for a hydrocarbon engine, the combination of a housing with an intake passage, a governing member located in the intake passage of the said housing, the said governing member being supported in the i said housing and having an axial extension through one of thewalls thereof a cam fastened to the extension of the said governing member, said cam being adapted to move with said governing member aboutits axis, a flexible member fastened to the said cam, said flexible member being j adapted to move around the axis of said governing member, a secondary housing extending from the said housing with an intake passage. and a resilient member swivellyconnected to the said secondary housing, and to the said flexiblemember, the said resilient memberthereby .state of equilibrium at a exerting a suiiicient reaction on the said cam to maintain, in accordance with a predetermined curve, the said governing member in a predeterminedspeed, relative to the reactions imposed thereupon by the operation of the engine. I

4. In a governingdevice-for a hydrocarbon engine, the combination of a housing having an intake conduit, a governing member located in the intake of the said housing, the said governing member being capable of being rotated to a closed position by the reactions imposed thereupon by the operation of the engine, the said governing member havingan axial shaft extending through the wall ofthe'said housing, a cam mounted on the axial shaft of the said governing member and adapted-to move therewith, around the axis of said governing member, a resilient member swivelly connected to the said housing, a flexible member connecting the said resilient member and the said cam, said flexible member being adapted to move around the axis of said governing member, the said resilient member causing the said flexible member to progressively contact with the said cam at points increasingly removed from the shaft of the said'governing member during its movement to a closed position.

5. In a governor for hydrocarbon engines,-

the combination of an intake conduit, a governing member located in the said conduit,

the said governing member being capable of I being rotated, to a closed position by the operation of the engine, and means for controlling the movement of the said governing member at a predetermined speed in accordance with ,a predetermined curve of the reactions imposed on the said governing meinher by the operation of the engine, the said means comprising a cam connected to the said governing member and adapted to move therewith about its axis, a flexible memberv connected to the said cam, said flexible member being adapted to move around the axis of said governing member, and means for maintaining the said flexible member in con- 1 tact with the said cam.

6. In a governor for a hydrocarbon engine, the combination of an intake condult, a governing member located in the said conduit,

loo

thesaid governing member being capable of being rotated to a closed position by the reactions imposed thereupon by the operation of the engine, and means for maintaining, in

accordance with a predetermined curve, thesaid governing member in a state of equilibrium at a predetermined speed, relative to the reactions imposed thereupon-by the op eratiorr of the engine, the said means comprising a cam connected to the said govern-.-

ing member and adapted to move therewith about its axis. a flexible memberconnected, at one of its ends, to the said cam, said flexible member being adapted to,move--aro1ind the,

, ient member connecte at one of its ends, to

vthe said flexible member, the said resilient member being suitably anchored at the other of its ends.

7. In a governor for the intake of hydrocarbon engines, the combination of a housing having an intake conduit, a governing member in the intake conduit of the said housingithe said governing member being capable of being rotatedto a closed position by the reactions imposed thereupon by the operation of the engine, and means for maintaining in accordance with a predetermined curve, the said governing member in a position corresponding to a predetermined engine speed, the said means comprising a cam attached to the said governing member and adapted to move therewith around the axis of said governing member, a cam follower attached to the said cam and resiliently con nected to the said housing,sa'id carnfollower being adapted to move around the axis of said governing member, the said cam follower being adapted to progressively contact with the said cam throughout its movement.

8. In a valve counterbalancing mechanism in a governor for an internal combustion engine, the combination of a cam connected to the valve and, adapted to move therewith about a common axis, a resilient member swivelly mounted, and a flexible member connected to the said cam and the said resilient member, said flexible member. being adapted to move around the common axis of said valve and said cam, the said flexible member being adapted to progressively con- .-tact with the said cam throughout its movement, the said flexible member thereby exerting on the said cam," a reaction whose control characteristics change with any increment of movement of the said'cam.

9. In a valve counterbalancing mechanism in a governor for an internal combustion engine, the combination of a cam connected to the valve and adapted to move therewith about a common axis, a :flexible member connected to the said cam and adapted to contact therewith, said flexible member being adapted to move around the common axis ofsaid valve and said cam, and a spring swivelly anchored, the said spring being connected to the said flexible member and exerting, through the said flexible member, a force on the said cam at points increasingly removed from the common axis of said cam and said valve during the closing movement of the valve. J

10. In a governing device for internal com hustion engines, an intake conduit, a valve located in the said intake conduit. the said valve being capable ofbeing moved to a closed position by the reactions imposed thereupon by the operation of the engine, the said valve being further provided with a bent portion,

"strap, suitably anchored, for maintaining, in

,chored and a flexible member connected to the said resilient means and theisaid cam,

the said bent portion being located in a position of substantial-alinement with the main line of the fuel charge flow, when the said valve 'is in an open position, and a flexible accordance with a-predetermined curve, the said valve in a state of equilibrium at a predetermined engine speed, relative to the reactions-imposed thereupon by the operation of the engine. 11., In a governing device for an internal combustion engine, the combination of an intake conduit, an unbalanced butterfly valve therein having a spindle, the upper portion of the said unbalanced butterfly being, in the fully open position of the butterfly, out of the direct influence of the fuel charge flow, a cam connected to the spindle of the said unbalanced butterfly valve, and adapted to move therewith, resilient means swivelly anthe' said flexible member transmitting controlling forces from the said resilient means to the said cam at points increasingly res moved from the spindle of the said unbalanced butterfly during the closing movement of the said unbalanced butterfly valve.

12. In a governing device for internal combustion engines, an intake conduit, an

axis mounted in the said intake conduit in a plane perpendicular to the inside wall of the said intake conduit, a valve located in the said intake conduit, the said valve being capable of oscillating on the said axis to a i closed position by the reactions imposed thereupon by the operation of the engine, the said valve having unequal portions disposed in different planes, on opposite sides of the said axis,.one of the said unequal portions being located behind the said axis and out of the direct influence of the fuel charge flow when the said valve is in an open position.

a cam mounted on'said axis and adapted to move therearound, and a resiliently anchored :1

flexible member connected to the said cam for maintaining, in accordance with a predetermined curve, the said valve in a state of equilibrium at a predetermined engine Speed", relativeto the reactions imposed thereupon b the operation of the engine. I

-13. 11 an internal combustion engine governor having an intake conduit of circular cross section, a 'governoring-member mounted in the intake conduit, said governing memher having portions located in different planes and adapted to contact against the longitudinal walls of said intake conduit, one of the said portions being located in a position out of the direct influence of the fuel charge flow when the said governing member is in an open position, and a flexible strap, resiliently anchored, for controlling the portion of said governing member.

' 14. In an internal combustion engine govanced butterfly valve, mounted onits axis in ernor, having an intake conduit, an unbalthe intake conduit, said unbalanced butterfly valve having unequal portions disposed inv diflerentplanes on opposite sides of its axis, one of the unequal portions being located behind the axis of the said unbalanced butterfly valve and between portions of the flowing fuel when the said unbalanced butterfly valve is in an open position and a flexible band resiliently anchpred, for opposing movement of said unbalanced butterfly valve.

15. In a valve counterbalancing mechanism in a governor for an internal combustion engine, the combination of a cam con' nected to the valve and adapted to rotate therewith about a common axis, a flexible member connected to the said cam and adapt-,

ed to contact therewith,'said flexible member being adapted to move around the common axis of said cam and said valves, resilient means swivelly anchored, the said resil-,

ient means being connected to the said flexible member and exerting, through the said flexible member, a force on the said cam at points increasingly removed from the pivotal point'of the said cam, during the closing movement of the valve, and means for vary-' ingi the active length of means. Y

.16. In a valve counterbalancing mechanism ina governor for an internal combustion engine, the combination of a cam connected to the valve and adapted to rotate therewith about a common axis, a flexible member connected to the said cam and adapted to contact therewith, said ber being adapted to move around the ,common. axis of said cam and said valve, and resilient means swivelly anchored topermit movement in a the movement of the said cam, the said resilient means being connected to the said flexible member and thereby exerting an accelerating force on the said cam, during the p swlvelly anchored,

closing movement of the valve, inaccordance with a predetermined torque curve produced by,the reactions exerted on the valve by the operation of the engine. 17. In a valve counterbalancing mechanism in a governorfor an internal combustion engine, the combination of a housing, a cam connected to the valve and adapted to move therewith, a flexible member connected tothe said cam and adapted to contact therewith, resilient means connected to the said flexible member, a grooved member mounted in the said housing, a threaded spindle suitably connected 'to the said resilient means, the said spindlehaving means for engagement with the said grooved member, the said engagement being maintained by the said resilient means.

18.'In a governor valve counterbalancing mechanism, including a resilient means, an

' and thereby the said resilient plane parallel to the plane of index member suitably anchored, and v a threaded spindle connectedto the said resilient means, the said threaded spindle being held in engagement with the said index member by the said resilient means, the said threaded spindle being adapted to be revolved move the said resilient means to or from the said index member.

19.'In a valve counterbalancing m'e cha- I nism in 'a governor for an internal combustion engine, the combination of a housing, a valve mounted in the said housing, a cam connected to the said valve and adapted to move therewith, a flexible member connected tothe said cam and adapted to contact therewith, a resilient means attached to the said flexible member, a grooved member mounted in the said housing, and a threaded,

spindle suitably connected to the, said resili-v ent means, the said threaded spindle having projecting arms engaging the said grooved member thereby enabling the said threaded spindle to oscillate in a plane parallel to the plane of the movement -oi. the said cam.-

, 20. In an adjusting means for a governor control mechanism, including" a resilient member, a threaded spindle connected to the said resilient member, the said threaded spindle having projecting lugs, a housing surrounding the control mechanism, a grooved member mounted in a recess in the said housing, the said grooved'member en-- gaging the projecting lugs on the said threaded spindle and .formin'ga pivot base therefore, and means for sealing the recess in the said housing, v

21. In a valve counterbalancing mecha-- nism in a governor for an internal combustion engine, the combination of a cam connected to the valve and adapted to oscillate therewith about a common axis, a flexible member connected to the said cam and adapted to contact therewith, said flexible member being adapted to move around the common axis of said cam and said the said resilient member being connected to the said flexible member and exerting, through the said flexible member, a force on the said cam at points increasingly removed from the axial point of said cam during the closing movement'ofthe valve, and means for stopping the said cam in a throttle position established in accordance with the maximum fuel demands of a given engine. at the governed speed.

22. In a governing device for an internal combustion engine, located lIl-the said intake conduit, the said valve being capable-of being rotated to a closed position by the reactions imposed thereupon by the operation of the engine, a cam connected to the said valve and adaptan intake conduit, a valve ed to move therewith about a common axis,

ient memberand the said cam, the said mediate member progressively conforming to the shape of the said cam during its movement, and means for stopping the said cam in accordance with a predetermined open position of the said valve. v 23. In a governing device for an internal combustion engine, an intake conduit, a valve located in the said conduit, the saidvalve being capable of being rotated to a closed "a position by the reactions imposed thereupon the operation of the engine,- a cam connected to the said valve and adapted tomove move around the common axis of s'ai therewith about a common axis, a cam follower adapted to flexibly contact with the r said-cam, said cam follower being adapted to I valve and said cam, and means for exerting, through the said cam follower, variable forces on the said cam, in accordance with a predetermined torque curve produced by the reaction exerted on the said valve by the operation of the engine.

24. In a governing device for an internal combustion engine, a valvecapable of being rotated to aclosed osition by the reactions imposed thereupon y the operation of the engine, resilient-means opposing the movement of the said valve, and connecting means 7 between the said resilient means and the said valve, said connectin means being adapted to move aroundthe axis of said valve, the said connectingmeans including a movable cam and a flexible cam follower.

GLENN L. MOYERS. EARL A. ABRAHAM. 

